SIST EN ISO 13501:2011

SLOVENSKI STANDARD
SIST EN ISO 13501:2011
01-oktober-2011
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SIST EN ISO 13501:2007
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Petroleum and natural gas industries - Drilling fluids - Processing equipment evaluation
(ISO 13501:2011)
Erdöl- und Erdgasindustrie - Bohrspülungen - Bewertung von Messgeräten (ISO
13501:2011)
Industries du pétrole et du gaz naturel - Fluides de forage - Évaluation des équipements
de traitement (ISO 13501:2011)
Ta slovenski standard je istoveten z: EN ISO 13501:2011
ICS:
75.180.10 Oprema za raziskovanje in Exploratory and extraction
odkopavanje equipment
SIST EN ISO 13501:2011 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 13501:2011

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SIST EN ISO 13501:2011


EUROPEAN STANDARD
EN ISO 13501

NORME EUROPÉENNE

EUROPÄISCHE NORM
June 2011
ICS 75.180.10 Supersedes EN ISO 13501:2006
English Version
Petroleum and natural gas industries - Drilling fluids -
Processing equipment evaluation (ISO 13501:2011)
Industries du pétrole et du gaz naturel - Fluides de forage - Erdöl- und Erdgasindustrie - Bohrspülungen - Bewertung
Évaluation des équipements de traitement (ISO von Messgeräten (ISO 13501:2011)
13501:2011)
This European Standard was approved by CEN on 25 May 2011.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 13501:2011: E
worldwide for CEN national Members.

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SIST EN ISO 13501:2011
EN ISO 13501:2011 (E)
Contents Page
Foreword .3

2

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SIST EN ISO 13501:2011
EN ISO 13501:2011 (E)
Foreword
This document (EN ISO 13501:2011) has been prepared by Technical Committee ISO/TC 67 "Materials,
equipment and offshore structures for petroleum, petrochemical and natural gas industries" in collaboration
with Technical Committee CEN/TC 12 “Materials, equipment and offshore structures for petroleum,
petrochemical and natural gas industries” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by December 2011, and conflicting national standards shall be withdrawn
at the latest by December 2011.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 13501:2006.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 13501:2011 has been approved by CEN as a EN ISO 13501:2011 without any modification.

3

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SIST EN ISO 13501:2011

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SIST EN ISO 13501:2011

INTERNATIONAL ISO
STANDARD 13501
Second edition
2011-06-15

Petroleum and natural gas industries —
Drilling fluids — Processing equipment
evaluation
Industries du pétrole et du gaz naturel — Fluides de forage —
Évaluation des équipements de traitement




Reference number
ISO 13501:2011(E)
©
ISO 2011

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SIST EN ISO 13501:2011
ISO 13501:2011(E)

COPYRIGHT PROTECTED DOCUMENT


©  ISO 2011
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland

ii © ISO 2011 – All rights reserved

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SIST EN ISO 13501:2011
ISO 13501:2011(E)
Contents Page
Foreword .v
Introduction.vi
1 Scope.1
2 Normative references.1
3 Terms, definitions, symbols and abbreviated terms .1
3.1 Terms and definitions .1
3.2 Symbols and abbreviated terms .11
4 Requirements.13
5 System performance of drilled-solids removal .13
5.1 Principle.13
5.2 Apparatus.13
5.3 Sampling.14
5.4 Procedure.15
6 Rigsite evaluation of drilled-solids management equipment .18
6.1 Principle.18
6.2 Application .18
6.3 Sampling of streams for capture analysis.19
6.4 Determination of mass fraction (percent) solids .19
6.5 Calculation of capture.20
6.6 Interpretation of results .20
6.7 Procedure for characterizing removed solids.21
6.8 Calculation of mass fraction (percent) of low-gravity solids.21
6.9 Particle size assessment on removed solids .21
6.10 Economics .22
7 Practical operational guidelines .22
7.1 Principle.22
7.2 Apparatus.22
7.3 Procedure for design and operation .23
7.4 Design of shale shakers .26
7.5 Operation of shale shakers .27
7.6 Design of degassers .27
7.7 Operation of degassers .28
7.8 Design of desanders and desilters.28
7.9 Design of mud cleaners.29
7.10 Design of centrifuges.30
7.11 Use of addition sections.30
7.12 Use of drilling fluid mixing and blending equipment .30
7.13 Use of suction section .31
7.14 Use of discharge section.31
8 Conductance of shale shaker screens.31
8.1 Principle.31
8.2 Principle of conductance.31
8.3 Apparatus for measurement of conductance.33
8.4 Procedure for calibrating fluid .34
8.5 Procedure for flow test .34
8.6 Procedure for measuring pressure drop .34
8.7 Procedure for conductance test .35
8.8 Calculation of conductance .35
© ISO 2011 – All rights reserved iii

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SIST EN ISO 13501:2011
ISO 13501:2011(E)
9 Shale shaker screen designation.37
9.1 Principle.37
9.2 Apparatus .38
9.3 Preparation of aluminium oxide test media .40
9.4 Preparation of test screen .42
9.5 Test procedure.42
9.6 Calculation of D100 separation for test screen cloth.43
10 Non-blanked area of shale shaker screen panel .46
10.1 Principle.46
10.2 Apparatus .47
10.3 Procedure for pretensioned or perforated panel-type screens .47
10.4 Calculation for pretensioned or perforated panel-type screens.47
10.5 Procedure for open-hook strip panels .47
10.6 Calculation for open-hook strip panels.47
10.7 Example calculation of total non-blanked area for a panel-mount screen.48
11 Shale shaker screen labelling .49
11.1 API screen designation .49
11.2 Label and tag format .51
11.3 API screen designation label examples .52
11.4 Other screen label and tags.54
Annex A (informative) Derivation of capture equation.55
Annex B (informative) Finder's method .57
Bibliography .60

iv © ISO 2011 – All rights reserved

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SIST EN ISO 13501:2011
ISO 13501:2011(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 13501 was prepared by Technical Committee ISO/TC 67, Materials, equipment and offshore structures
for petroleum, petrochemical and natural gas industries, Subcommittee SC 3, Drilling and completion fluids,
and well cements.
This second edition cancels and replaces the first edition (ISO 13501:2005), which has been technically
revised.
The main changes compared with the first edition are as follows:
⎯ Clause 11 specifies a different labelling requirement for shale shaker screens that are permanently
attached to the screen, and also covers the marking of shipping containers for shale shaker screens;
⎯ Annex B describes a standard procedure for the quick assessment of a solids control screen sizing, which
can be used in the field or laboratory for identification of an unknown screen approximate size range.
NOTE The procedure described in Annex B is provided for information only and does not replace or supplement
the normative testing in accordance with Clauses 9, 10 and 11, nor is it intended for the operating comparison or
ranking of similar types of individual pieces of equipment.
© ISO 2011 – All rights reserved v

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SIST EN ISO 13501:2011
ISO 13501:2011(E)
Introduction
This International Standard is based on API RP 13C, 3rd edition, December 2004 (for drilling fluid processing
equipment) and shale shaker screen API RP 13E, 3rd edition, May 1993 (for shale shaker screens).
The purpose of this International Standard is to provide a method of assessing the performance of solids
control equipment systems in the field. It includes procedures for evaluation of shale shakers, centrifugal
pumps, degassers, hydrocyclones, mud cleaners and centrifuges, as well as an entire system evaluation.
Shale shaker screen labelling and separation potential of shale shaker screens have been addressed within
this International Standard.
This International Standard covers equipment which is commonly used in petroleum and natural gas drilling
fluids processing. This equipment can be purchased or rented from multiple sources, and is available
worldwide. No single-source or limited-source equipment is included, either by inference or reference.
In this International Standard, quantities expressed in the International System (SI) of units are also, where
practical, expressed in United States Customary (USC) units for information.
NOTE The units do not necessarily represent a direct conversion of SI units to USC units, or of USC units to SI units.
Consideration has been given to the precision of the instrument making the measurement. For example,
thermometers are typically marked in one degree increments, thus temperature values have been rounded to
the nearest degree.
This International Standard refers to assuring the accuracy of the measurement. Accuracy is the degree of
conformity of a measurement of a quantity to the actual or true value. Accuracy is related to precision, or
reproducibility of a measurement. Precision is the degree to which further measurements or calculations will
show the same or similar results. Precision is characterized in terms of the standard deviation of the
measurement. The result of calculation or a measurement can be accurate, but not precise, precise but not
accurate, neither or both. A result is valid if it is both accurate and precise.
Users of this International Standard should be aware that further or differing requirements may be needed for
individual applications. This International Standard is not intended to inhibit a vendor from offering, or the
purchaser from accepting, alternative equipment or engineering solutions for the individual application. This
may be particularly applicable where there is innovative or developing technology. Where an alternative is
offered, the vendor should identify any variations from this International Standard and provide details.

vi © ISO 2011 – All rights reserved

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SIST EN ISO 13501:2011
INTERNATIONAL STANDARD ISO 13501:2011(E)

Petroleum and natural gas industries — Drilling fluids —
Processing equipment evaluation
1 Scope
This International Standard specifies a standard procedure for assessing and modifying the performance of
solids control equipment systems commonly used in the field in petroleum and natural gas drilling fluids
processing.
The procedure described in this International Standard is not intended for the comparison of similar types of
individual pieces of equipment.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
1)
ISO 3310-1 , Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth
2)
ISO 10414-1 , Petroleum and natural gas industries — Field testing of drilling fluids — Part 1: Water-based
fluids
3)
ISO 10414-2 , Petroleum and natural gas industries — Field testing of drilling fluids — Part 2: Oil-based fluids
ANSI/AWWA C700, Cold-Water Meters — Displacement Type, Bronze Main Case
API, Manual of Petroleum Measurement Standards
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
addition section
compartment(s) in the surface drilling fluid system, between the removal section and the suction section,
which provides (a) well-agitated compartment(s) for the addition of commercial products such as chemicals,
necessary solids and liquids

1) For the purposes of this International Standard, ASTM E11-95 is equivalent to ISO 3310-1.
2) For the purposes of this International Standard, API RP 13B-1 is equivalent to ISO 10414-1.
3) For the purposes of this International Standard, API RP 13B-2 is equivalent to ISO 10414-2.
© ISO 2011 – All rights reserved 1

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SIST EN ISO 13501:2011
ISO 13501:2011(E)
3.1.2
agitator
mechanical stirrer
mechanically driven mixer that stirs the drilling fluid, by turning an impeller near the bottom of a mud
compartment to blend additives, suspend solids and maintain a uniform consistency of the drilling fluid
3.1.3
aperture
〈screen cloth〉 opening between the wires in a screen cloth
3.1.4
aperture
〈screen surface〉 opening in a screen surface
3.1.5
apex
opening at lower end of a hydrocyclone
3.1.6
API sand
〈physical description〉 particles in a drilling fluid that are too large to pass through a 74 µm sieve (API 200
screen)
NOTE 1 Its amount is expressed as a volume fraction (percent) of drilling fluid.
NOTE 2 Particle size is a descriptive term; the particles can be shale, limestone, wood, gold or any other material.
3.1.7
API screen number
number in an API system used to designate the D100 separation range of a mesh screen cloth
NOTE 1 Both mesh and mesh count are obsolete terms, and have been replaced by the API screen number.
NOTE 2 The term “mesh” was formerly used to refer to the number of openings (and fraction thereof) per linear inch in
a screen, counted in both directions from the centre of a wire.
NOTE 3 The term “mesh count” was formerly used to describe the fineness of a square or rectangular mesh screen
cloth, e.g. a mesh count such as 30 × 30 (or, often, 30 mesh) indicates a square mesh, while a designation such as
70 × 30 mesh indicates a rectangular mesh.
NOTE 4 See 9.6 for further information.
3.1.8
backing plate
support plate attached to the back of screen cloth(s)
3.1.9
baffle
plate or obstruction built into a compartment to change the direction of fluid flow
3.1.10
barite
baryte
natural barium sulfate (BaSO ) used for increasing the density of drilling fluids
4
NOTE The standard international requirement is for a minimum specific gravity of 4,20 or 4,10 for two grades of
barite, but there is no specification that the material must be barium sulfate. Commercial ISO 13500 barite can be
produced from a single ore or a blend of ores, and can be a straight-mined product or processed by flotation methods. It
can contain accessory minerals other than barium sulfate (BaSO ). Because of mineral impurities, commercial barite can
4
vary in colour from off-white to grey to red or brown. Common accessory minerals are silicates such as quartz and chert,
carbonate compounds such as siderite and dolomite, and metallic oxide and sulfide compounds.
2 © ISO 2011 – All rights reserved

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SIST EN ISO 13501:2011
ISO 13501:2011(E)
3.1.11
blinding
reduction of open area in a screening surface caused by coating or plugging
3.1.12
bonding material
material used to secure screen cloth to a backing plate or support screen
3.1.13
capture
mass fraction of incoming suspended solids that are conveyed to the reject stream
NOTE See Clause 6.
3.1.14
centrifugal pump
machine for moving fluid by spinning it using a rotating impeller in a casing with a central inlet and a tangential
outlet
NOTE The path of the fluid is an increasing spiral from the inlet at the centre to the outlet, tangent to the impeller
annulus. In the annular space between the impeller vane tips and the casing wall, the fluid velocity is roughly the same as
that of the impeller vane tips. Useful work is produced by the pump when some of the spinning fluid flows out of the casing
tangential outlet into the pipe system. Power from the motor is used to accelerate the fluid entering the inlet up to the
speed of the fluid in the annulus. Some of the motor power is expended as friction of the fluid in the casing and impeller.
3.1.15
centrifuge
device, rotated by an external force, for the purpose of separating materials of various masses (depending
upon specific gravity and particle sizes) from a slurry to which the rotation is imparted primarily by the rotating
containing walls
NOTE In a weighted drilling fluid, a centrifuge is usually used to eliminate colloidal solids.
3.1.16
check section
suction section
last active section in the surface system which provides a location for rig pump and mud hopper suction, and
ideally is large enough to check and adjust drilling fluid properties before the drilling fluid is pumped downhole
3.1.17
clay mineral
soft, variously coloured earth, commonly hydrous silicate of alumina
NOTE Clay minerals are essentially insoluble in water, but disperse under hydration, grinding, heating or velocity
effects. Particle sizes of clay mineral can vary from sub-micrometre to larger than 100 µm.
3.1.18
clay particle
colloidal particles of clay mineral having less than 2 µm equivalent spherical diameter
NOTE See colloidal solid (3.1.21).
3.1.19
coating
〈substance〉 material adhering to a surface to change the properties of the surface
NOTE See blinding (3.1.11).
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SIST EN ISO 13501:2011
ISO 13501:2011(E)
3.1.20
coating
〈physical process〉 procedure by which material forms a film that covers the apertures of the screening surface
NOTE See blinding (3.1.11).
3.1.21
colloidal solid
particle of diameter less than 2 µm
NOTE This term is commonly used as a synonym for clay particle size.
3.1.22
conductance
permeability per unit thickness of a static (not in motion) shale shaker screen
4)
NOTE Conductance is expressed in units of kilodarcies per millimetre .
3.1.23
cuttings
formation pieces dislodged by the drill bit and brought to the surface in the drilling fluid
NOTE Field practice is to refer to all solids removed by the shaker screen as “cuttings”, although some can be
sloughed material.
3.1.24
D100 sep
...